GB1070733A - Process for liberating nitrogen,in the form of ammonia, from solids or liquids, containing bound nitrogen - Google Patents
Process for liberating nitrogen,in the form of ammonia, from solids or liquids, containing bound nitrogenInfo
- Publication number
- GB1070733A GB1070733A GB38649/64A GB3864964A GB1070733A GB 1070733 A GB1070733 A GB 1070733A GB 38649/64 A GB38649/64 A GB 38649/64A GB 3864964 A GB3864964 A GB 3864964A GB 1070733 A GB1070733 A GB 1070733A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nitrogen
- alloy
- devarda
- water
- reaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/002—Determining nitrogen by transformation into ammonia, e.g. KJELDAHL method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/06—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus using counterpressure, i.e. filling while the container is under pressure
- B67C3/12—Pressure-control devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/17—Nitrogen containing
- Y10T436/176152—Total nitrogen determined
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Nitrogen, in the form of ammonia, is liberated from solid or liquid material in which nitrogen is bound as ammonium, urea, nitrate or nitrite by a process involving the reduction of the material or part thereof in alkaline solution by means of a Devarda alloy and/or the reaction of the material or part thereof with an alkali metal hydroxide or carbonate, wherein the reaction when using Devarda alloy is performed in an amount of water not more than 5 times the weight of Devarda alloy plus sample on a water-free basis, or when using alkali metal hydroxide or carbonate in the absence of Devarda alloy, is performed in an amount of water not more than 40 times the weight of the sample on a water-free basis, and the ammonia evolved is expelled from the reaction vessel with the aid of a stream of inert gas via a mist trap maintained at a temperature exceeding 100 DEG C. All nitrogen present in the material may be liberated by reaction with Devarda's alloy and alkali preferably preheated to 40 DEG C., the heat needed being derived from the reaction of alkali and alloy. The material may be treated with an oxidant (e.g. sodium hypobromite) in the presence of NaOH or NaHCO3 to remove nitrogen bound to hydrogen (i.e. NH4 + and urea), the excess hypobromite removed by treatment with sodium sulphide and the residual material treated with Devarda's alloy to liberate nitrate- and nitrite-bound nitrogen. The ammonia liberated may be absorbed in water or acid and then titrated, thereby estimating the nitrogen content of the material.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL298225 | 1963-09-23 | ||
NL300958 | 1963-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1070733A true GB1070733A (en) | 1967-06-01 |
Family
ID=26641933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB38649/64A Expired GB1070733A (en) | 1963-09-23 | 1964-09-22 | Process for liberating nitrogen,in the form of ammonia, from solids or liquids, containing bound nitrogen |
Country Status (6)
Country | Link |
---|---|
US (1) | US3363990A (en) |
BE (1) | BE653405A (en) |
CH (1) | CH486697A (en) |
DE (1) | DE1282998B (en) |
GB (1) | GB1070733A (en) |
NL (3) | NL298225A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4311597A (en) * | 1979-02-21 | 1982-01-19 | Republic Steel Corporation | Method and apparatus for treatment of wastewater |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3842068A1 (en) * | 1988-12-14 | 1990-06-21 | Buehler Edmund Gmbh & Co | Method and apparatus for determining the ammonium nitrogen content in aqueous systems |
US4929314A (en) * | 1989-07-07 | 1990-05-29 | The Dow Chemical Company | Coulometric titrator apparatus and method |
SE508220C2 (en) * | 1997-01-29 | 1998-09-14 | Foss Tecator Ab | Procedure for determining nitrogen according to Kjeldahl |
AU2006318645B2 (en) * | 2005-11-21 | 2010-05-27 | Shell Internationale Research Maatschappij B.V. | Method for monitoring fluid properties |
CA2979678A1 (en) | 2015-04-20 | 2016-10-27 | Halliburton Energy Services, Inc. | Methods for quantifying nitrogen-containing compounds in subterranean treatment fluids |
CN110201623A (en) * | 2019-07-03 | 2019-09-06 | 北京东方安杰科技有限公司 | A kind of quick oxidation unit of ammonia nitrogen and the quick method for oxidation of ammonia nitrogen |
CN111413453A (en) * | 2020-05-25 | 2020-07-14 | 福建春达化工有限公司 | Plasticizer production wastewater total nitrogen test method |
CN113820445B (en) * | 2020-06-18 | 2023-11-14 | 宝山钢铁股份有限公司 | Method for detecting concentration of cold rolling circulation leveling liquid |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3186800A (en) * | 1961-02-27 | 1965-06-01 | Beckman Instruments Inc | Automatic titrator |
US3174829A (en) * | 1961-08-25 | 1965-03-23 | Evan L R Stokstad | Apparatus for kjeldahl nitrogen determination |
-
0
- NL NL133962D patent/NL133962C/xx active
- NL NL300958D patent/NL300958A/xx unknown
- NL NL298225D patent/NL298225A/xx unknown
-
1964
- 1964-09-18 US US397435A patent/US3363990A/en not_active Expired - Lifetime
- 1964-09-21 CH CH1225164A patent/CH486697A/en not_active IP Right Cessation
- 1964-09-22 BE BE653405D patent/BE653405A/xx unknown
- 1964-09-22 GB GB38649/64A patent/GB1070733A/en not_active Expired
- 1964-09-23 DE DEST22712A patent/DE1282998B/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4311597A (en) * | 1979-02-21 | 1982-01-19 | Republic Steel Corporation | Method and apparatus for treatment of wastewater |
Also Published As
Publication number | Publication date |
---|---|
DE1282998B (en) | 1968-11-14 |
US3363990A (en) | 1968-01-16 |
CH486697A (en) | 1970-02-28 |
NL133962C (en) | |
NL300958A (en) | |
BE653405A (en) | 1965-03-22 |
NL298225A (en) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1070733A (en) | Process for liberating nitrogen,in the form of ammonia, from solids or liquids, containing bound nitrogen | |
GB919443A (en) | Process for treating water | |
GB1090103A (en) | Process for the recovery of sulphur dioxide and ammonia from ammonium salts | |
DE3161712D1 (en) | Process for the simultaneous destruction of trace components in reaction gases obtained in the synthesis of melamine | |
GB1106024A (en) | Urea synthesis | |
GB1351016A (en) | Chemical process | |
US3086838A (en) | Method of purifying gaseous mixtures from acidic compounds | |
ES437246A1 (en) | Treatment of water vapor generated in concentrating an aqueous urea solution | |
US3120997A (en) | Process for producing alkali metal superoxides | |
GB1009345A (en) | Process for obtaining alkali metal cyanides | |
GB951548A (en) | Process for the recovery of carbon dioxide of very high purity | |
JPS5493669A (en) | Treating method for desulfurized waste liquid of coke oven gas | |
JPS5352274A (en) | Treating method for aqueous solution containing urea, ammonia and carbondioxide | |
JPS5556878A (en) | Removing method for hydrogen sulfide and cyanogen in gas liquor | |
GB753671A (en) | Improvements in or relating to the manufacture of urea | |
GB1101379A (en) | Improvements in or relating to gas purification | |
GB905615A (en) | Improvements in or relating to treatment of toxic copper-containing solutions | |
GB1124392A (en) | Process of impregnating capillary-containing materials such as wood under pressure ina closed vessel | |
JPS55102557A (en) | Recovery of useful component from waste gas in methionine synthesis | |
GB292669A (en) | Improved process for absorbing hydrogen sulphide or hydrogen sulphide and ammonia from gases | |
JPS57177331A (en) | Removal of hydrogen sulfide | |
GB810760A (en) | A method for the preparation of a fertilizer containing urea and ammonium sulphate, with a high nitrogen content | |
GB949952A (en) | Process for the recovery of carbon disulphide and sulphur from exhaust gas | |
SU133466A1 (en) | Selection method of selenium from nitrous sulfuric acid | |
JPS54136749A (en) | Decolorizing process for organic sludge and clearing-off process for organic matter |